Others' circumstances seem more desirable than one's own but in reality often are not.

In the process of trying to achieve something, one's aspirations may be realized too late.

Alternative form of the grass is always greener on the other side

(idiomatic) To dally; to fail to make progress. / To settle in one place rather than moving to another.

Alternative form of let the grass grow under one's feet

present participle of let the grass grow round one's feet

present participle of let the grass grow under one's feet

Third-person singular simple present indicative form of let the grass grow round one's feet

Third-person singular simple present indicative form of let the grass grow under one's feet